131213121220319 has 8 divisors (see below), whose sum is σ = 131356594008720. Its totient is φ = 131069675028096.

The previous prime is 131213121220301. The next prime is 131213121220327. The reversal of 131213121220319 is 913022121312131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131213121220319 - 2¹⁶ = 131213121154783 is a prime.

It is a super-2 number, since 2×131213121220319² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131213121220619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3231437 + ... + 16518729.

It is an arithmetic number, because the mean of its divisors is an integer number (16419574251090).

Almost surely, 2^{131213121220319} is an apocalyptic number.

131213121220319 is a deficient number, since it is larger than the sum of its proper divisors (143472788401).

131213121220319 is a wasteful number, since it uses less digits than its factorization.

131213121220319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13298089.

The product of its (nonzero) digits is 3888, while the sum is 32.

The spelling of 131213121220319 in words is "one hundred thirty-one trillion, two hundred thirteen billion, one hundred twenty-one million, two hundred twenty thousand, three hundred nineteen".